Overdrive Feedback
#2676738
07/12/19 08:20 AM
07/12/19 08:20 AM
|
Joined: Aug 2008
Posts: 941 Texas, USA
ChrgrCuda
OP
super stock
|
OP
super stock
Joined: Aug 2008
Posts: 941
Texas, USA
|
Just thought I'd inquire again regarding feedback on folks who have installed O/D's in their B-Bodies and how well you may or may not like it, ease of installation and cost. Not trying to get any arguments, just feedback. I've been busy with customer cars so I haven't been able to spend time with my own, however once I'm done with a few customers slots I'm going to schedule my own car in for some overdue mods. Basically, I want my 69 440 Charger to be as reliable if needed to drive on a Power Tour and not be taxed by my current Dana 60 with 3.73's. I've found a lot out already by searching, just thought I'd get any current upgrades or info.
Thanks Darren
68 Cuda Notchback [Email]10.86@120[/Email]
69 Charger R/T 440/505
2009 Challenger SRT8
|
|
|
Re: Overdrive Feedback
[Re: CSK]
#2676789
07/12/19 11:59 AM
07/12/19 11:59 AM
|
Joined: Aug 2008
Posts: 941 Texas, USA
ChrgrCuda
OP
super stock
|
OP
super stock
Joined: Aug 2008
Posts: 941
Texas, USA
|
Did you have to cut the floor and or cross member up?
68 Cuda Notchback [Email]10.86@120[/Email]
69 Charger R/T 440/505
2009 Challenger SRT8
|
|
|
Re: Overdrive Feedback
[Re: ChrgrCuda]
#2676797
07/12/19 12:37 PM
07/12/19 12:37 PM
|
Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
|
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
|
I did the LGT-SS700 5-speed trans. I really like the overdrive, and diphram clutch, but install was a pain. Did have to cut top of tunnel for shifter and the T-bar brace in the tunnel for clearance. The speedometer cable still comes out at the crossmember, so clearance is a problem there too, but it works. I don't know what the best overdrive option is if you want to maintain the stock trans tunnel? The kit I received was supposed to fit, but what they did was use a trans crossmember that dropped the back if the transmission down about 1.5 to 2" from stock. This tilted the engine back to where the headers were hitting the suspension, and the air cleaner was tilted too. So to get it to fit, had to cut T-Bar bracket inside the tunnel to get the trans output back to stock height.
|
|
|
Re: Overdrive Feedback
[Re: 451Mopar]
#2676811
07/12/19 01:00 PM
07/12/19 01:00 PM
|
Joined: Aug 2008
Posts: 941 Texas, USA
ChrgrCuda
OP
super stock
|
OP
super stock
Joined: Aug 2008
Posts: 941
Texas, USA
|
Yeah that's what I don't want to get into. The Gear Vendors is the simplest, however I'm still on the fence as it's only .78 O/D. The SST A41 has a .70 O/D and also fits extremely well from what I have read, however 2X the cost. I don't mind paying the difference if the A41 is that much better.
68 Cuda Notchback [Email]10.86@120[/Email]
69 Charger R/T 440/505
2009 Challenger SRT8
|
|
|
Re: Overdrive Feedback
[Re: ChrgrCuda]
#2676824
07/12/19 02:14 PM
07/12/19 02:14 PM
|
Joined: Aug 2011
Posts: 2,857 Pattison Texas
CSK
master
|
master
Joined: Aug 2011
Posts: 2,857
Pattison Texas
|
Did you have to cut the floor and or cross member up? dent the floor , cut up & build a X member
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
|
|
|
Re: Overdrive Feedback
[Re: ChrgrCuda]
#2676997
07/13/19 09:07 AM
07/13/19 09:07 AM
|
Joined: Jan 2003
Posts: 12,075 Benton, IL.
DaveRS23
Special needs idiot
|
Special needs idiot
Joined: Jan 2003
Posts: 12,075
Benton, IL.
|
I found this chart as part of an answer to a question similar to the one the OP asked. It sums up my feelings on the matter. I have an E body and love the 518 behind my Hemi with 3.91s. I did not have to make any real mods to the car, just some light massaging. I will probably re-make the tranny mount sometime soon since I am not happy with the one I have now. And the only other thing that I would like to be different would be the weight. Man that thing is heavy. -------------------------------------------------------------------------------------------------------------------------- So you think the GV is a cleaner install? Maybe. If you don't mind the weight of a GV unit hanging off a long lever arm bolted to the back of a 727 case that wasn't designed for it I don't see how you would mind having a different transmission crossmember supporting a factory designed transmission.
GV = .78 OD 500/518 = .68 OD
Using a 275/60-15 rear tire and 3.23 gears this is what the numbers look like at 60 mph: No OD = 2300 rpm GV = 1900 rpm 518 = 1600 rpm
75 mph: No OD = 2900 rpm GV = 2300 rpm 518 = 2000 rpm
For you hot rodders out there here's what it looks like with 4.10 gears. 60 mph: No OD = 3000 rpm GV = 2300 rpm 518 = 2000 rpm
75 mph: No OD = 3700 rpm GV = 2900 rpm 518 = 2500 rpm
Master, again and still
|
|
|
Re: Overdrive Feedback
[Re: ChrgrCuda]
#2677154
07/13/19 07:06 PM
07/13/19 07:06 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
Rule #1: only read your own posts Rule #2: there is no Rule #2 Rule #3: see Rule #1
Boffin Emeritus
|
|
|
Re: Overdrive Feedback
[Re: ChrgrCuda]
#2677191
07/13/19 09:45 PM
07/13/19 09:45 PM
|
Joined: May 2003
Posts: 13,189 aZLiViN
J_BODY
I Live Here
|
I Live Here
Joined: May 2003
Posts: 13,189
aZLiViN
|
Just thought I'd inquire again regarding feedback on folks who have installed O/D's in their B-Bodies and how well you may or may not like it, ease of installation and cost. Not trying to get any arguments, just feedback. I've been busy with customer cars so I haven't been able to spend time with my own, however once I'm done with a few customers slots I'm going to schedule my own car in for some overdue mods. Basically, I want my 69 440 Charger to be as reliable if needed to drive on a Power Tour and not be taxed by my current Dana 60 with 3.73's. I've found a lot out already by searching, just thought I'd get any current upgrades or info.
Thanks Darren Give Darren Smith a call at Pro Trans. They’re in Waco TX now and he’s done OD builds and installs. Believe he’s also putting one in his Coronet build 👍🏻
|
|
|
Re: Overdrive Feedback
[Re: moparx]
#2677215
07/13/19 11:08 PM
07/13/19 11:08 PM
|
Joined: Nov 2006
Posts: 2,255 IL
furious70
top fuel
|
top fuel
Joined: Nov 2006
Posts: 2,255
IL
|
since an A500 was mentioned behind a 383, how much HP and torque can one of those handle, and what was used to adapt the A500 to a big block ? I have it my 4200lbs fury. Turbo charged 383 but not a high power unit yet. Street car not a race car but it's been fine. Tranztech in Dubuque ia does it, bb 727 bell is cut off and bolted on so everything oem still hooks up.
70 Sport Fury 68 Charger 69 Coronet 72 RR
|
|
|
Re: Overdrive Feedback
[Re: moparx]
#2677223
07/13/19 11:30 PM
07/13/19 11:30 PM
|
Joined: Aug 2005
Posts: 6,003 Salem
Grizzly
Moparts Proctologist
|
Moparts Proctologist
Joined: Aug 2005
Posts: 6,003
Salem
|
since an A500 was mentioned behind a 383, how much HP and torque can one of those handle, and what was used to adapt the A500 to a big block ? No problem: http://smrtrans.tripod.com/smrtransmissionsintro/index.htmlOne of the Mopar magazines did a favorable article on these Guys. I would definitely go 904-based transmission given the first gear ratio options and less parasitic drag. I learned one thing quickly after owning my first 4 speed 318: the 727 is a power-sucking turd. I've had 318's and 360's with 727-based transmissions (3 speed and 4 speed od's) and they subtract a noticeable amount of horsepower.
Mo' Farts
Moderated by "tbagger".
|
|
|
Re: Overdrive Feedback
[Re: polyspheric]
#2677283
07/14/19 10:09 AM
07/14/19 10:09 AM
|
Joined: Apr 2003
Posts: 3,510 Tulsa, Oklahoma
340Cuda
master
|
master
Joined: Apr 2003
Posts: 3,510
Tulsa, Oklahoma
|
Could it be installed backward as an underdrive, multiplying each gear by 1.286 (inverse of .7778) to use your existing tall axle and still have a big SLR? I don't know.
I don't think you install it backwards, but GV does offer underdrive units as well as overdrive units.
|
|
|
|
|